(from the article `control theory`) ...existence conditions, beginning in the late 1950s, has had an important effect on the evolution of modern control, equally from the theoretical ... Found on http://www.britannica.com/eb/a-z/c/136
(from the article `motivation`) ...situations suggests that the four causal ascriptions mentioned above and perhaps other ascriptions as well can best be understood as falling along ... Found on http://www.britannica.com/eb/a-z/c/136
property of a system which implies that its state variables can be changed from an initial state into a desired final state within a finite time interval via a proper time slope of the input variables NOTE - The controllability is global if this changing is possible whatever the initial state and the final state may be. Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=351-21-32